Live Fiber Identifier | Mod. FAB-TM501

FAB-TM501 live fiber identifier with built-in OPM and VFL, detects signals and direction in real time without service interruption.

Need a custom spec or OEM branding on this product? Talk to our engineering team.

Factory Tested

Every batch, before shipment

ISO-9001

Manufacturing

OEM Available

Custom specs and branding

Global Delivery

Americas, Europe and Africa

The FAB-TM501 Live Fiber Identifier from Fibramérica is a multi-functional and essential tool for field technicians managing active fiber optic networks. This handheld device identifies live fibers without disrupting the traffic, making it indispensable for maintenance and troubleshooting.

With built-in Optical Power Meter (OPM) and Visual Fault Locator (VFL), the FAB-TM501 provides a complete test solution in one compact unit. It detects core power, signal direction, and modulated tones at 270Hz, 1kHz, and 2kHz, and displays real-time data on a bright LED color screen.

Its compatibility with various fiber sizes (250μm, 900μm, 2mm, and 3mm) and easy-to-use metal gripper design eliminates the need for adaptor changes, increasing efficiency during operations. The tool also includes low power monitoring, aiding in safe and accurate identification.

Ideal for telecom operators, ISPs, and fiber installers, the FAB-TM501 streamlines fault detection and active fiber verification in FTTx, backbone, and access network environments.

  • Non-intrusive live fiber identification

  • Built-in OPM and 10mW VFL functions

  • Supports 270Hz/1kHz/2kHz signal detection

  • Displays direction and relative power level

  • LED color screen for clear visualization

  • Compatible with 250μm–3mm fiber sizes

  • InGaAs detector with universal 2.5mm port

  • Lightweight and portable (145g)

  • Operates from -20°C to 60°C

  • Runs on 2x AA batteries

Specification Details
Model FAB-TM501
Wavelength Range 800–1700nm
Insertion Loss 1.0dB (250/900μm), 1.5dB (2.0/3.0mm)
Signal Type 270Hz / 1kHz / 2kHz
Display LED color screen
Detector InGaAs
OPM Wavelength 800–1700nm
OPM Range -70 to +10dBm / -50 to +26dBm
VFL Wavelength 650nm ±10nm
VFL Output Power 10mW
Connector 2.5mm universal
Power Supply 2 × AA 1.5V alkaline batteries
Operating Temp -20°C to +60°C
Dimensions 220 × 38 × 28mm
Weight 145g
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FAB-TM501, live fiber identifier, optical power meter, VFL tool, 270Hz detection, fiber testing, InGaAs detector

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Our engineering team can confirm compatibility, custom specs and OEM branding options.

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